Key assembly and key device

Abstract

The utility model discloses a key assembly and key equipment, and the key assembly comprises a housing which comprises an installation support and an installation main body which is movably connected with the installation support in a first direction; the keycap is detachably connected to one side of the mounting bracket; the switch piece is arranged on the other side of the mounting bracket, and one side of the mounting bracket and the other side of the mounting bracket are arranged in the first direction; wherein the projections of the keycap and the switch piece on the plane where the mounting main body is located at least partially cover the mounting main body, and the keycap acts on the mounting main body along the first direction under the action of external force, so that the mounting main body presses the switch piece. The key assembly is simple in structure, the assembly precision and difficulty are reduced, and the part cost and the assembly cost are saved.

Description

Technical Field

[0001] The present application relates to the technical field of switch buttons, and in particular to a button assembly and a button device. Background Art

[0002] The key assembly in the key device can realize various controls and function switching. In the existing key assembly, the key cap is in contact with the switch part, and a silicone intermediate is assembled between the key cap and the switch part to realize the key cap rebound. The above key assembly is complicated to install; the silicone intermediate is easy to age and has high cost. Utility Model Content

[0003] The present application provides a key assembly and a key device to solve the technical problems of the existing key assembly being complicated to install and the silicone intermediate being easy to age and having high cost.

[0004] In order to solve the above technical problems, the present application proposes a key assembly, comprising: a shell, comprising a mounting bracket and a mounting body, the mounting body being movably connected to the mounting bracket along a first direction; a keycap, detachably connected to one side of the mounting bracket; a switch member, arranged on the other side of the mounting bracket, and one side of the mounting bracket and the other side of the mounting bracket are arranged along the first direction; wherein, the projection of the keycap and the switch member on the plane where the mounting body is located at least partially covers the mounting body, and the keycap is subjected to external force acting on the mounting body along the first direction so that the mounting body presses the switch member.

[0005] Wherein, a first supporting portion is arranged on a side of the installation body close to the switch member, and the first supporting portion is used for abutting against the switch member.

[0006] Wherein, the button assembly includes an elastic arm, and the mounting body is elastically connected to the mounting bracket along a first direction through the elastic arm.

[0007] Among them, a plurality of limiting grooves are opened on one side of the mounting bracket close to the keycap, the elastic arm is located between adjacent limiting grooves, one end of the limiting groove is connected to the mounting body, and the other end is connected to the mounting bracket.

[0008] The button assembly includes at least two elastic arms, and the two elastic arms are arranged at intervals around the outer periphery of the installation body.

[0009] Among them, the limiting groove includes a first limiting groove, a second limiting groove and a transition groove respectively connected to the first limiting groove and the second limiting groove, the first limiting groove of one limiting groove and the second limiting groove of another limiting groove are arranged in a ring shape to form an elastic arm, and the second limiting groove of one limiting groove and the first limiting groove of another limiting groove are arranged in a ring shape to form another elastic arm.

[0010] Wherein, the key assembly includes a second supporting portion, which is arranged on a side of the installation body facing the keycap so that the keycap contacts the second supporting portion; or, the second supporting portion is arranged on a side of the keycap facing the installation body so that the second supporting portion contacts the installation body.

[0011] Wherein, a guide column is arranged on a side of the key cap facing the mounting bracket, a guide hole is passed through the mounting bracket or the mounting body, and the guide column is inserted into the guide hole.

[0012] A buckle is provided on one side of the keycap facing the mounting bracket, a buckle hole is passed through the mounting bracket, and the buckle is buckled in the buckle hole so that the buckle is buckled on one side of the mounting bracket facing the switch.

[0013] In order to solve the above technical problems, the present application proposes a key device, including the key assembly described above.

[0014] The beneficial effect of the present application is as follows: Different from the prior art, the present application provides a key assembly. The key assembly includes a shell, a keycap and a switch component. The shell includes a mounting bracket and a mounting body. The mounting body is movably connected to the mounting bracket along a first direction. The keycap is detachably connected to one side of the mounting bracket. The switch component is arranged on the other side of the mounting bracket. One side of the mounting bracket and the other side of the mounting bracket are arranged along the first direction. The projection of the keycap and the switch component on the plane where the mounting body is located at least partially covers the mounting body. The keycap is acted on the mounting body by an external force along the first direction so that the mounting body presses the switch component.

[0015] By setting a shell between the keycap and the switch member. The shell includes a mounting bracket and a mounting body, and the mounting body is movably connected to the mounting bracket along a first direction, that is, the keycap is reset through the shell structure itself, the structure is simple, no silicone intermediate piece is required for limiting or supporting, the assembly accuracy and difficulty are reduced, and the installation and disassembly are easy; the cost of parts and assembly costs are saved. In addition, the projection of the keycap and the switch member on the plane where the mounting body is located at least partially covers the mounting body, which improves the accuracy of pressing or resetting the keycap of the key assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative work, among which:

[0017] Figure 1 is an exploded schematic diagram of the first embodiment of the key device of the present application;

[0018] Figure 2 is a cross-sectional schematic diagram of a first embodiment of the key device of the present application;

[0019] Figure 3 is a partial cross-sectional schematic diagram of the first embodiment of the key device of the present application;

[0020] Figure 4 is a first partial schematic diagram of the first embodiment of the key device of the present application;

[0021] Figure 5 It is a partial schematic diagram of the second embodiment of the key device of the present application;

[0022] Figure 6 is a cross-sectional schematic diagram of a housing in the key device of the present application;

[0023] Figure 7 It is a structural schematic diagram of the first embodiment of the key device of the present application;

[0024] Figure 8 yes Figure 7 A schematic diagram of the structure shown;

[0025] Fig. 9 is a second partial schematic diagram of the first embodiment of the key device of the present application;

[0026] Fig.10 It is a schematic diagram of the structure of the key cap in the key device of the present application;

[0027] Fig.11 yes Fig.10 The schematic diagram of the structure of BB shown;

[0028] Fig.12 It is a cross-sectional schematic diagram of the first embodiment of the key device of the present application.

[0029] Figure numbers: 10, button assembly; 1, shell; 11, mounting bracket; 111, limit groove; 1111, first limit groove; 1112, second limit groove; 1113, transition groove; 112, snap hole; 12, mounting body; 121, guide hole; 2, keycap; 21, guide column; 22, snap member; 3, switch member; 4, first support part; 5, elastic arm; 6, second support part; 61, support groove; 100, button device; 20, connecting plate. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0031] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0032] The key assembly and key device provided by the utility model are described in detail below in conjunction with the embodiments.

[0033] See also Figure 1 , Figure 2 as well as Figure 3 , Figure 1 is an exploded schematic diagram of the first embodiment of the key device of the present application; Figure 2 is a cross-sectional schematic diagram of a first embodiment of the key device of the present application; Figure 3 It is a partial cross-sectional schematic diagram of the first embodiment of the key device of the present application. The present application provides a key assembly 10. The key assembly 10 includes a housing 1. The housing 1 includes a mounting bracket 11 and a mounting body 12. The mounting body 12 is movably connected to the mounting bracket 11 along a first direction X, so that the mounting body 12 moves a certain distance along the first direction X relative to the mounting bracket 11. Among them, the movable connection method can be an elastic connection, a telescopic connection, a stretching connection, etc., which can achieve the installation body 12 relative to the mounting bracket 11. The specific connection method is not limited.

[0034] The key assembly 10 includes a key cap 2. The key cap 2 is detachably connected to one side of the mounting bracket 11. Whether the key cap 2 is pressed by an external force or released by the external force, the key cap 2 does not separate from the mounting bracket 11. The detachable manner may be a snap connection, a plug connection, etc., and the specific connection manner is not limited.

[0035] The button assembly 10 includes a switch member 3. The switch member 3 is disposed on the other side of the mounting bracket 11. The switch member 3 can be mounted on the mounting bracket 11 by means of snap connection, plug connection or bolt connection. The switch member 3 is a conventional technical component of a person skilled in the art and is not limited here.

[0036] One side of the mounting bracket 11 and the other side of the mounting bracket 11 are arranged along the first direction X. The projections of the keycap 2 and the switch member 3 on the plane where the mounting body 12 is located at least partially cover the mounting body 12. When the keycap 2 is subjected to an external force, the keycap 2 can at least act on the mounting body 12, and the mounting body 12 can at least act on the switch member 3.

[0037] When the key cap 2 is acted on the installation body 12 by an external force along the first direction X, the installation body 12 moves relative to the installation bracket 11 along the first direction X, so that the installation body 12 presses the switch element 3, thereby turning on the switch element 3.

[0038] The housing 1 is arranged between the keycap 2 and the switch 3. The housing 1 includes a mounting bracket 11 and a mounting body 12, and the mounting body 12 is movably connected to the mounting bracket 11 along the first direction X, that is, the keycap 2 is reset through the structure of the housing 1 itself, the structure is simple, and there is no need to use a silicone intermediate piece for limiting or supporting, which reduces the assembly accuracy and difficulty, and is easy to install and disassemble; it saves the cost of parts and the assembly cost. In addition, the projection of the keycap 2 and the switch 3 on the plane where the mounting body 12 is located at least partially covers the mounting body 12, which improves the accuracy of pressing or resetting the keycap 2 of the key assembly 10.

[0039] See also Figure 4 , Figure 5 as well as Figure 6 , Figure 4 is a first partial schematic diagram of the first embodiment of the key device of the present application; Figure 5 It is a partial schematic diagram of the second embodiment of the key device of the present application; Figure 6 Schematic diagram of the cross section of the housing in the key device of the present application. Figure 1 and Figure 3 In one embodiment, a first support portion 4 is provided on one side of the installation body 12 close to the switch element 3. When the keycap 2 is subjected to an external force acting on the installation body 12 along the first direction X, the installation body 12 is movably connected to the installation bracket 11 along the first direction X, and the first support portion 4 on the installation body 12 is used to abut against the switch element 3, thereby switching on the switch element 3. When the external force on the keycap 2 is removed, the installation body 12 returns to its original state, and there is a certain gap between the first support portion 4 and the switch element 3, or the first support portion 4 is in contact with the switch element 3, and the switch element 3 is not switched on at this time.

[0040] The key cap 2 is not in direct contact with the switch member 3, but cooperates with the switch member 3 through the first support portion 4. By limiting the different heights of the first support portion 4 along the first direction X to adapt to the switch members 3 of various specifications, not only the compatibility of the key assembly 10 is increased, but also the problems of uneven assembly dimensions, poor consistency of feel, and sinking of the key cap 2 caused by too many tolerance chains can be avoided.

[0041] The first support portion 4 can be connected to the side of the installation body 12 close to the switch 3 in a variety of ways. For example, the first support portion 4 is fixed or integrally formed on the side of the installation body 12 close to the switch 3. In order to meet the needs of switch 3 of different specifications, the height of the first support portion 4 along the first direction X can be shortened or increased according to actual needs. Figure 3When the switch member 3 is high in the first direction X, the first support portion 4 is shortened by an external tool to fit the switch member 3. Figure 5 When the height of the switch member 3 along the first direction X is short, a plurality of support members (not shown in the figure) are provided on the first support portion 4 to increase the height of the first support portion 4 along the first direction X to adapt to the above-mentioned switch member 3.

[0042] The first support portion 4 is detachably connected to the side of the mounting body 12 close to the switch 3. The detachable manner may be snap-on, plug-in or bolted connection. According to the requirements of the switch 3 of different specifications, the first support portion 4 of different heights is adapted to meet the requirements of the switch 3 of different specifications. Therefore, there may be many ways to set the first support portion 4, which can be determined according to the actual situation and is not limited here.

[0043] See also Figure 7 , Figure 8 and Fig. 9 , Figure 7 It is a structural schematic diagram of the first embodiment of the key device of the present application; Figure 8 yes Figure 7 A schematic diagram of the structure shown; Fig. 9 2 is a partial schematic diagram of the first embodiment of the key device of the present application. Figures 1 to 6 In one embodiment, the key assembly 10 includes an elastic arm 5. The mounting body 12 is elastically connected to the mounting bracket 11 along the first direction X through the elastic arm 5. The elastic arm 5 has a certain elasticity and can be deformed and restored to its original state. By arranging the elastic arm 5 between the mounting bracket 11 and the mounting body 12, not only the mounting body 12 is displaced and deformed along the first direction X relative to the mounting bracket 11, but also after the external force is released, the elastic arm 5 restores the displacement deformation, so that the mounting body 12 is restored to its original state relative to the mounting bracket 11, that is, the mounting body 12 is restored to its original state along the second direction Y relative to the mounting bracket 11; at the same time, the structure of the key assembly 10 is also simplified, and there is no need to set or use a silicone intermediate piece to limit or support, and it is easy to install and disassemble. Among them, the first direction X and the second direction Y are opposite.

[0044] The number of the elastic arms 5 can be one, two, three or more. The elastic arm 5 is fixed or integrally formed and connected between the mounting bracket 11 and the mounting body 12. As in the present embodiment, the elastic arm 5 is integrally formed between the mounting bracket 11 and the mounting body 12. Of course, the elastic arm 5 can also be detachably connected between the mounting bracket 11 and the mounting body 12, which is not limited here.

[0045] In one embodiment, a plurality of limiting grooves 111 are provided on one side of the mounting bracket 11 close to the key cap 2. The elastic arm 5 is located between adjacent limiting grooves 111. One end of the limiting groove 111 is connected to the mounting body 12. The other end of the limiting groove 111 is connected to the mounting bracket 11. The limiting groove 111 is not only used to form the elastic arm 5, but also the limiting groove 111 can be deformed to adapt to the elastic arm 5. Through the cooperation of the limiting groove 111 and the elastic arm 5, the displacement deformation performance of the mounting body 12 relative to the mounting bracket 11 can be improved, thereby improving the performance of the key assembly 10.

[0046] In one embodiment, the key assembly 10 includes at least two elastic arms 5. The two elastic arms 5 are arranged at intervals around the outer periphery of the mounting body 12. The at least two elastic arms 5 improve the supporting performance, so that the key cap 2 and the mounting body 12 can return to their original state as soon as possible after the pressing external force is released, further improving the performance of the key assembly 10.

[0047] The number of the elastic arms 5 is determined according to actual needs and is not limited here. Further, when the installation body 12 is arranged in a circular shape, two elastic arms 5 are arranged at intervals around the outer periphery of the installation body 12. As in this embodiment, three elastic arms 5 are arranged at equal intervals.

[0048] Because there is an elastic arm 5 between adjacent limiting grooves 111. At least part of the shape of the elastic arm 5 matches the shape of the limiting groove 111. The limiting groove 111 includes a first limiting groove 1111, a second limiting groove 1112 and a transition groove 1113. The transition groove 1113 is connected to the first limiting groove 1111 and the second limiting groove 1112 respectively. The first limiting groove 1111 of one limiting groove 111 and the second limiting groove 1112 of another limiting groove 111 are arranged in a ring and form an elastic arm 5. The second limiting groove 1112 of one limiting groove 111 and the first limiting groove 1111 of another limiting groove 111 are arranged in a ring and form another elastic arm 5. Through the arrangement between the adjacent limiting grooves 111, not only the elastic arm 5 is formed, but also the elastic arm 5 is arranged around the outer periphery of the installation body 12 at intervals, and the connection strength between the elastic arm 5 and the installation body 12 and the installation bracket 11 is also increased. When there are three limiting grooves 111, three elastic arms 5 are formed between the mounting body 12 and the mounting bracket 11. Of course, the limiting grooves 111 can also be arc-shaped, curved, etc., which are not limited here.

[0049] In one embodiment, the key assembly 10 includes a second support portion 6. The second support portion 6 is located between the mounting body 12 and the keycap 2. The second support portion 6 plays a certain supporting role. When the keycap 2 moves along the first direction X, the second support portion 6 can support the keycap 2 to prevent the keycap 2 from excessive movement; at the same time, the length between the keycap 2 and the mounting body 12 can be shortened to reduce the threshold of the external force.

[0050] In a specific embodiment, the second support portion 6 is disposed on a side of the installation body 12 facing the keycap 2, so that the keycap 2 contacts the second support portion 6. When the keycap 2 is subjected to an external force, the keycap 2 acts on the second support portion 6 along the first direction X, and the second support portion 6 drives the installation body 12 to displace and deform relative to the installation bracket 11 along the first direction X. The second support portion 6 is fixedly or detachably connected to the installation body 12. As in this embodiment, the second support portion 6 is integrally formed with the installation body 12.

[0051] In another specific embodiment, the second support portion 6 is disposed on a side of the keycap 2 facing the installation body 12, so that the second support portion 6 contacts the installation body 12. When the keycap 2 is acted upon by an external force, the second support portion 6 is also acted upon by the external force, and then the second support portion 6 acts on the installation body 12 along the first direction X, so that the installation body 12 is displaced and deformed relative to the installation bracket 11 along the first direction X. The second support portion 6 is fixedly or detachably connected to the keycap 2.

[0052] See also Fig.10 and Fig.11 , Fig.10 It is a schematic diagram of the structure of the key cap in the key device of the present application; Fig.11 yes Fig.10 The schematic diagram of the structure of BB is shown. Figure 1 , Figure 2 , Figure 3 , Figure 4 as well as Figure 5 In one embodiment, a guide post 21 is provided on the side of the keycap 2 facing the housing 1. The guide post 21 plays a guiding role. A guide hole 121 is passed through the mounting bracket 11 or the mounting body 12. The guide post 21 is plugged into the guide hole 121. The guide post 21 and the guide hole 121 cooperate with each other, which not only plays a pre-positioning role, but also facilitates the installation of the key assembly 10; during the pressing or resetting process of the keycap 2, the keycap 2 moves along the guide post 21, and the keycap 2 does not collapse or get stuck, thereby improving the performance of the key assembly 10.

[0053] The above-mentioned guide hole 121 can be set in the mounting bracket 11. The setting position of the guide column 21 matches the guide hole 121. Alternatively, the guide hole 121 can be set in the mounting body 12. Because the second support portion 6 is also set in the mounting body 12. An open support groove 61 is provided in the second support portion 6. The guide hole 121 is located at the bottom of the support groove 61, reducing the size of the mounting body 12. When external force acts on the side of the keycap 2, the guide column 21 of the keycap 2 will squeeze the mounting body 12, and the mounting body 12 will undergo elastic deformation. The rebound force of the mounting body 12 acts on the guide column 21 to correct the guide column 21. The corrected guide column 21 makes the pressing of the keycap 2 and the rebound of the keycap 2 in a normal state, ensuring that the key assembly 10 is smooth and there is no key jamming.

[0054] The number of the guide posts 21 and the guide holes 121 can be one, two, three or more. For example, in this embodiment, the number of the guide posts 21 and the guide holes 121 are both four. The four guide posts 21 and the four guide holes 121 are all arranged in a circle.

[0055] See also Fig.12 , Fig.12 1 is a cross-sectional schematic diagram of the first embodiment of the key device of the present application. Figure 1 , Figure 2 , Figure 4 , Fig. 9 , Fig.10 as well as Fig.11 In one embodiment, a buckle 22 is provided on a side of the keycap 2 facing the mounting bracket 11. A buckle hole 112 is formed through the mounting bracket 11. The buckle 22 is buckled in the buckle hole 112, so that the buckle 22 is buckled in the side of the mounting bracket 11 facing the switch 3. The buckle 22 and the buckle hole 112 cooperate with each other, which facilitates the installation of the keycap 2 and prevents the keycap 2 from falling off.

[0056] The above-mentioned buckle 22 is fixed, integrally formed or detachably connected to a side of the keycap 2 facing the mounting bracket 11. The number of the buckle 22 and the buckle hole 112 can be one, two, three or more. For example, in this embodiment, the number of the buckle 22 and the buckle hole 112 are both four, and they are all distributed around the keycap 2.

[0057] In some specific application scenarios, when installing the key assembly 10, the guide column 21 on the keycap 2 passes through the guide hole 121 on the mounting body 12. The buckle 22 on the keycap 2 is pressed, and the buckle 22 is elastically deformed and passes through the buckle hole 112 of the mounting bracket 11. When the buckle 22 is clamped on the side of the mounting bracket 11 away from the keycap 2, the keycap 2 contacts the second support portion 6, limiting the keycap 2 to move along the first direction X. In addition, the switch member 3 is mounted on the housing 1 through the connecting plate 20, and at this time, the first support portion 4 and the switch member 3 form a clearance fit or contact.

[0058] When the key assembly 10 is pressed, the key cap 2 is acted upon by an external force, and the force is transmitted to the second support portion 6 facing the mounting support. The second support portion 6 and its mounting body 12 are displaced and deformed along the first direction X through the elastic arm 5, so that the first support portion 4 is displaced and deformed along the first direction X. The first support portion 4 continues to move along the first direction X until the switch member 3 is effectively turned on during the pressing process, thereby realizing the functional conduction of the key cap 2.

[0059] When resetting the key assembly 10, when the external force on the keycap 2 is released, the elastic arm 5 returns to its original state to form a certain resilience, and the resilience acts on the first support portion 4, and the first support portion 4 drives the keycap 2 to move along the second direction Y to achieve the resetting of the keycap 2. At this time, the buckle 22 on the keycap 2 is located in the buckle hole 112, limiting the keycap 2 from falling off. The guide column 21 limits the circumferential movement of the keycap 2 to ensure that the gaps between adjacent key assemblies 10 are uniform after the keycap 2 rebounds.

[0060] The present application provides a key device 100. The key device 100 can be a mechanical device (not shown in the figure) or an electronic device (not shown in the figure). The key device 100 includes the key assembly 10 described above. The key assembly 10 is used to realize various function controls and switches. By applying the above-mentioned key assembly 10, the key device 100 has a simple structure, does not need to use a silicone intermediate piece for limiting or supporting, reduces assembly accuracy and difficulty, and is easy to install and disassemble; saves component costs and assembly costs; is compatible with various specifications of switch components 3, which not only increases the compatibility of the key assembly 10; but also reduces the occurrence of key jamming. It should be noted that the key assembly 10 described in this embodiment is the key assembly 10 described in the above embodiment, and will not be repeated one by one.

[0061] There can be multiple key assemblies 10. Multiple key assemblies 10 are arranged in the shell 1 along a third direction (not shown in the figure). The third direction is perpendicular to the first direction X. Because there are no structures such as flanges around the keycaps 2 in the key assembly 10, a small gap is set between adjacent keycaps 2. When the edge of the keycap 2 is pressed, the keycap 2 and the mounting body 12 are laterally tilted and offset, and will not contact the adjacent keycap 2 and the adjacent mounting bracket 11, further reducing the occurrence of key jamming. By setting a small gap between adjacent key assemblies 10, the key device 100 can realize the combination of multiple key assemblies 10.

[0062] When there are multiple key assemblies 10, the multiple key assemblies 10 can adapt to switch components 3 of different specifications, meet the requirements of switch components 3 of different specifications, achieve compatibility of the key assemblies 10, and then improve the compatibility of the key device 100, which is particularly suitable for key devices 100 in which multiple key assemblies 10 are arranged with small gaps. When there are multiple switch components 3, the key device 100 also includes a connecting plate 20. The multiple switch components 3 are detachably arranged on the connecting plate 20. The connecting plate 20 is detachably connected to the housing 1 to achieve installation and fixation of the connecting plate 20.

[0063] The terms "first", "second", "third" in this application are only used for descriptive purposes and cannot be understood as indicating the quantity of the indicated technical features. Thus, the features defined as "first", "second", "third" can expressly or implicitly include at least one of these features. In the embodiments of the present application, all directional indications (such as up, down, left, right, front, back ...) are only used to explain the relative positional relationship, motion conditions, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication also changes accordingly. In addition, the terms "include" and "have" and any of their variations are intended to cover non-exclusive inclusions. The process, method, system, product or equipment such as including a series of steps or units is not limited to the listed steps or units, but optionally also includes steps or units that are not listed, or optionally also includes other steps or units inherent to these processes, methods, products or equipment.

[0064] The above descriptions are merely embodiments of the present application and are not intended to limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A button assembly, characterized in that: include: The housing comprises a mounting bracket and a mounting body, wherein the mounting body is movably connected to the mounting bracket along a first direction; A key cap is detachably connected to one side of the mounting bracket; A switch member is disposed on the other side of the mounting bracket, and one side of the mounting bracket and the other side of the mounting bracket are arranged along the first direction; The projections of the keycap and the switch element on the plane where the installation body is located at least partially cover the installation body, and the keycap is acted on the installation body along the first direction by an external force, so that the installation body presses the switch element.

2. The key assembly according to claim 1, characterized in that: A first supporting portion is provided on one side of the installation body close to the switch member, and the first supporting portion is used to abut against the switch member.

3. The key assembly according to claim 1, characterized in that: The button assembly includes an elastic arm, and the mounting body is elastically connected to the mounting bracket along the first direction through the elastic arm.

4. The key assembly according to claim 3, characterized in that: A plurality of limiting grooves are formed on one side of the mounting bracket close to the key cap, the elastic arm is located between adjacent limiting grooves, one end of the limiting groove is connected to the mounting body, and the other end is connected to the mounting bracket.

5. The key assembly according to claim 4, characterized in that: The button assembly comprises at least two elastic arms, and the two elastic arms are arranged around the outer periphery of the installation body at intervals.

6. The key assembly according to claim 5, characterized in that: The limiting groove includes a first limiting groove, a second limiting groove and a transition groove respectively connected to the first limiting groove and the second limiting groove. The first limiting groove of one limiting groove and the second limiting groove of another limiting groove are arranged in a ring shape to form an elastic arm. The second limiting groove of one limiting groove and the first limiting groove of another limiting groove are arranged in a ring shape to form another elastic arm.

7. The key assembly according to any one of claims 1 to 6, characterized in that: The key assembly comprises a second supporting portion, and the second supporting portion is arranged on a side of the mounting body facing the key cap, so that the key cap contacts the second supporting portion; Alternatively, the second supporting portion is disposed on a side of the key cap facing the installation body, so that the second supporting portion is in contact with the installation body.

8. The key assembly according to any one of claims 1 to 6, characterized in that: The key cap is provided with a guide column on a side facing the housing, the mounting bracket or the mounting body is penetrated by a guide hole, and the guide column is inserted into the guide hole.

9. The key assembly according to any one of claims 1 to 6, characterized in that: A buckle is provided on a side of the keycap facing the mounting bracket, a buckle hole is passed through the mounting bracket, and the buckle is buckled in the buckle hole so that the buckle is buckled on a side of the mounting bracket facing the switch.

10. A key device, characterized in that: A key assembly comprising any one of claims 1 to 9.

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